Barrel-closure.



r A. M. s'l'uugs.

BARREL CLOSURE.

APYLIOATION FILED APR. 6, 1909.

Patented May 9, 1911.

entree snares AUGUSTA, M. STOCK, 0F BUFFALO, NEW YORK, ASSIGNOR TOROBERT STOCK MANU- FACTURING 00., 0F BUFFALD, NEW YGBK, A CORPOFATION OFNEW YORK.

BARREL-CLOSURE.

Specification of Letters Patent.

Patented May Q 1911 Application filed April 5, 1909. Serial Ilo.3853923.

To all whom "it may concern:

Be it known that I, AUGUSTA M. Screen, a citizen of the United States,residing at Buli'alo, in the county of Erie and State of New York, haveinvented a new and useful Improvement in Barrel-Closures, of which thefollowing is a )ecificatio'n. I

This invention re ates to a barrel closure and has the object to providea closure of this character whereby the barrel may be securely andreliably closed, which can be easily and conveniently manipulated andwhich can be produced at comparatively low cost. 7

In the accompanying drawings Figure l is a longitudinal section of myimproved barrel closure showing the parts assembled preparatory totightening the closure. Fig.

2 is a similar View but sh wing the holding device in elevation and theclosure tightened. Fig. 3 is an end view of the outer section of thebung. is a cross section in line 44. Fig. 2. Fig. 5 is a fragmentarylongitudinal section showing the manner of interlocking the holdingdevice and the outer bung section.

Similar letters of reference indicate corresponding parts throughout theseveral news.

A represents a barrel or similar vessel or article having an opening inwhich is secured a circular bushing B having an external screw thread 7)and an inwardly or for wardly tapering bore. Within this bushing isarranged a hung having inner and outer sections C, C which are movableaxially relatively to each other and which are adapt: ed between them toexpand a packing ring D within the bushing.

The relative axial movement of the bung sections is preferably ellcctedby means of a screw joint between them so that upon turning the sectionsone with reference to 'the other the ections will approach onrecede fromeach other. This screw connection, as shown in the drawings, consists ofan internally threaded annular flange 0 on the outer end of the innerhung section rec-1' iug an externally threaded annular ti: on the innerend of the outer bung section.

The inner bung section is smaller in diam: etcr than the inner end ofthe tapered bore of the bushing and provided externally with an annularforwz rdly facing and beveled tapered shoulder 0 while the outer bungtion is of larger diameter than the inner. end of the bore of thebushing, so thatupon inserting the hun in the bushin the inner bungsection will pass inwardly yond the inner end of the bushing but theouter bung section will engage the bore ofthe same, as shown in. Fig. 1.The packing ring D which consists of rubber or similar material surrounds the inner bung section and is en aged at its inner edge bv thebeveled shou der e of the same while its outer ed e is engaged by anopposing abrupt shoulder e on the outer bung section.

While introducing the bung into the bushing the sections of the same andthe packing contracted. After these parts have been inserted in thebushing until the outer section engages the bore of the bushing and theinner section is arranged beyond the inner end of the bushing, as shownin Fig. 1, the inner section is turned, so that the screw connectionbetween the same and the outer section causes the same to moveoutwardly. thereby expanding the packing at the inner edge of thebushing and tightly closing the barrel, as shown in Fig. 2-. For openingthe closure of the bar," rel the operation of the bung sections andpacking gust described is reversed, so as to separate the bung sectionsand permit the packing to contact.

The separation of the bung sections is limited by means of two parallellugs l1, F projecting outwardly from the cntral part of the inner bungsection. and eac 1 provided with a laterally projecting lip f forming animvardly facing shoulder which is ada )ittl to engage with an outwardlyfacing shou dcr formed on an internal annular flange y within the boreof the outer hung section. The hung sections are coupled in this mannorby inserting the lugs F, F outwardly through the central opening'in theouter bushing section and then breaching, upsetting or swuging the endsof these lugs outwardly, soas to form the laterally project-' ing lips fthereon which overlap the flange 0. The opposinginuer sidcs ot the lugsl l of t e inner bushing section are preteruoly tlat sidednnd parallel,forming a socket which is adapted to receive the flat sided inner end71. or a key rod H which passes through a central opening ii in theouter hung section and whereby the inner bung section may be turned whentighteuin5 orare separated turned, the outer bung section @t thecoupling dill loosening the closure. This key rod is provided at itsouter end with a finger piece h for operating the same.

While the inner bung section is being is held against turning by aholding device which constructed as follows :--1 indicates a hollowcylindrical holder body surrounding the key rod and provided on oppositesides'of its inner end with T-shaped coupling or locking heads 2' whichare adapted to enter corresponding undercut sockets or recessesJ-fornied on the outer end of theout'e'r bung section on oppositesides-of its center. At its outer end the holder body is provided with aknurled finger piece K which contains an opening Z through which the keyrod passes and an inwardly facing shoulder m in its bore whichcooperates with an outwardly facing shoulder m on the periphery of thekey rod for limiting the retracting ncovement of the rod in the holder.

In ap lying the bung to the bushing the same is rst coupled with theholder and key by engaging the inner end of the key with the socket ofthe inner bung section and enaging the hooks on one side of the heads ofthe holder With the corresponding sides of the undercut sockets t theouter section. "When the parts are thus coupled, the hey is turned in adirection opposite to the interlocked sides of the holder beads, wherebythe outer bung section is held against turning and the inner section isturneo. in the d'rection for causing it to preach the outer section,thereby expanding the packing in the bushing and closing the barrel. For opening the barrel the holder is turned in a reverse direction untilthe hoolts on the opposite sides of the coupling heads engage under theopposit" undercut parts of the sockets in the outer bung tion then thekey is turned in ti After the bong has vets direction. loosened the sameis withdrawn from the bushing. lily thus coupling the bushing with theholder While introducing the same into the bushing and removing the sametherefrom, the saline in the absence of any provision to prevent it,would be liable to drop ed the holder, inasmuch asthe hooks heads are ofless thickness the sockets in the outer than the depth oil? a yieldinglonng section. To prevent this, tension or pressure draws the hooksoutwardly against the un: dercut parts of the sockets therein and thusbu 11g a hollow body device is provided which i holds these parts'trictionully in place relatively to each other. The preferred means"for thus frietionully coupling the holder and outer bung sectionconsists of a hearing or pressure sleeve ix movable lengthwise in theinner part. of the pocket in the hollow body of the holder and providedwith a central opening it through which the key rod passes and a springosurrounding the key rod and hearing at its opposite ends against theouter end t said pressure sleeve and the outer end of said pocket, theinward or for- Ward movement of the hearing or pressure sleeve beinglimited by an inwardly facing shoulder 72 formed on the bearing sleeveand adapted to bear against an outwardly facing shoulder 7) in the boreof said holder pocket. By this means the bung may be readily attached toand removed from the holder and freely manipulated Without liability ofdropping oil, thus facilitating the Work of applying the bungs andremoving the same from the bushings.

I claim as my invention:

A barrel closure comprising a bushing adapted to be secured in anopening in a barrel, a hung arranged in said bushing and having innerand outer screw-connected scotions provided with opposing externalshoulders, an elastic packing ring arranged between said shoulders andadapted to be expanded within said bushing, said inner bushingsection'having a flat sided socket and said outer bushing section havingan undercut socket, a handle for holding the outer lu'ashing sectionagainst, turning havand a T-shaped head adapted to engage with saidundercut socket of the outer bushing. section, a key for turning saidinner bushing section having a rod arranged centrally within said.holding handle and having a iiat sided inner end ch is adapted to engagewith the flat sided socket oi"? the inner bushing section and ayieltfling pressure device for holding the ilOlCllllf handle in placecomprising a sleeve movablelengthwise within the holding handle andadapted to engage with the outer side of the outer bushing section, anda spring arranged within the holding handle and pressing said sleeveinwardly.

l iitncss my hand this 30th day of lit larch,

l i itnessesz Tnso. 1b. iors, 1?. M. GMHAM,

